My Windows 7 Home Premium just had a boot failure when I turned it on today. It restarted, and "recommended" boot repair, which I ran but found no problems. Then restarted again and booted normally. It booted fine, and when I checked the system log I found an error stating "win32k.sys failed to load". The system is now running fine, but why would it suddenly have an error like that? I ran "sfc /scannow" in an admin command window and it found no problems. The only changes I have made recently are installing MS issued security updates. Have any problems been reported with any of those updates? Any other thoughts?